@charset "utf-8";
* {
	padding: 0px;
	margin: 0px;
	font-family: "微软雅黑";
	font-size: 13px;
}

.main_div {
	width: 1000px;
	margin: auto;
}

a {
	text-decoration: none;
}

a:link {
	text-decoration: none;
	color: black;
}

a:active {
	color: red;
}

a:focus {
	color: black;
}

a:hover {
	color: blue;
}

.float_left {
	float: left;
}

.float_right {
	float: right;
}

.clear_float {
	clear: both;
}

ul,
li {
	float: left;
	list-style: none;
}

input {
	outline: none;
}

.marg_top_10 {
	margin-top: 10px;
}

.marg_top_20 {
	margin-top: 20px;
}

.marg_top_30 {
	margin-top: 30px;
}